Gym Slacking is a free game for girl to play online at MaFa.Com. You can play Gym Slacking in your browser for free. Going to gym class can be a real chore, especially when you're a slacker like Sarah. All that jumping around is too much work and Sarah just wants to chat with her pals and munch on pizza. But her personal trainer has other ideas! Can Sarah take it easy whilst working out? Use your mouse or keyboard to complete the activities. Help Sarah slack at the gym, but when the personal trainer walks over press the X to keep exercising.